This is a Prime number,so ther is only one pair 1,29.
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1x20 2x10 5x4
They would be 1 and 36, 2 and 18, 3 and 12, 4 and 9, and 6 and 6.
There are infinitely many possible answers.A simple one is 1 times 20.A less simple one is -4 times -5A really unusual answer is 2+4i and 2-4i where i is the imaginary square root of -1.
There are (10 x 9)/2 = 45 different possible pairs of 2 teachers. For each of these . . .There are (30 x 29)/2 = 435 different possible pairs of students.The total number of different committees that can be formed is (45 x 435) = 19,575 .
Assuming the 36 numbers are all different, there are 36*35/2 = 630 pairs.